1,4-benzothiazepine derivatives
CA 2098495 C · Owner: Sakai, Teruyuki · Inventors: Sakai, Teruyuki; Oosawa, Tatsushi; Kaneko, Noboru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Object, An object of the invention is to provide compounds having a myocardial KD (Kinetic cell death)-inhibiting effect without being accompanied by a cardiodepressant effect. Construction, A 1,4-benzothiazepine derivative represented by the following Formula I:, wherein each of substituent groups is defined as follows: R represents H or a C1 - C3 lower alkoxy group; X represents O or H2; n represents 1 or 2; R1 represents H a substituted, phenyl group wherein the substituent group is OH or a C1-C3 lower alkoxy group, a C1 - C3 lower alkoxy group wherein R2 represents a C1 - C3 aryl group and ph, represents a phenyl group, or a pharmaceutically acceptable salt thereof. 34
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed December 27, 1991 and granted November 30, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 27, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 27, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.